ip telephony
From MSN to DDI
I really hate when customer plays unfair – doing big change in services without notice. It was this time with approximatelly 30 remote offices each with 2 bri interfaces.
In the half of them we met an issue. Conections wasn’t established properly. After searches solution was to reconfigure bri interfaces as below
isdn tei-negotiation first-call
isdn tei-negotiation power
isdn tei-negotiation powerup
isdn static-tei 0
Important: clear interface
Fax at gateway/router
Preparing to aquire all necessary knowledge I started to implementing Fax-to-mail solution in one of my projects.
Idea: Fax to mail via 2811 with E1 as additional service for Contact Center. Looks easy, but life shows it different.
Challenge: voip protocol, fax protocol and default scirpts depending of hardware 
CCNA Voice
The next exam has been passed – this time CCNA Voice with very good result. 65 questions and 1/3 was very difficult. The truth is I thought starting from 50th question I answered wrong to the rest of questions.
Practice and experince is what helps you the most. That’s the reason what makes me to think I will pass CCNA this time.
Big issue
Finally the “biggest issue” had been resolved. It was not so big as people thought at the begining. Well, anybody can say, that after all any problem seems easy, but when is unsolved it is horrible nightmare.
Asuming, month of exchanging logs, informations etc. and final result was that the cluster must be established by reseting.
P.D. Gracias a Maria – el voz bonito como la persona
Unified Communications Manager biggest issue
After disk failure I faced the biggest issue in my job. Recovery of publisher forced recovery of subscriber. That was information from Cisco. For now it looks like it didn’t helped at all. Cluster still not working properly, especially with extention mobility. Data exchange with CRS is also not perfect.
I hope Cisco will show something after digging logs.
It is a nightmare til now. How long will it continue?
ProCurves
HP accelarates with development networking segment, so it is time to look closer for “their” solutions. After Colubris aquisition it looks like HP has got the best solution for wifi. Colubris had got the most secure wifi solutions.
OK we will see 
GWGK
After long preparation I passed Gateways and Gatekeepers exam. Iwas more difficult I thought. Learning all necessary subject it was almost the same as CVoice plus some experience I’ve been learning during support. Pure GK knowledge is not huge. However exam suprised me and the effect was I passed below 900 points.
Asuming it is nothing strange for me that GWGK disappeared and new CVoice was rebulit with IP-IP gateways. It is exactly the same.
I hope I will get next for CCVP soon. Some hard learning time and I will be ready. The good thing is that at work I will be ready to built some lab for voice solutions. Finally. It is obvoius that not everything should be tested on production enviroments.
UCCX exam passed
I passed Cisco Unified Contact Center Express exam yesterday. I can confirm in this case I got the knowledge the best possible way. Started with supporting solution when it was version 3.5. Enterprise 4.7, but in the case of this exam not neccesssary. I participated in the training for UCCX 5.0 and finally closed everything with implementation of conatct center express with CUCM 6.0.
It was really the first time I was prepared so perfect.
Confirmation: CQS – Cisco Conatact Center Express Specialist
CCIE preparation
I am during preaparation to obtain CCIE Voice certificate. I prepare for some exams by myself or participating in classroom as well as web trainings.
I found lately a good resource for final preparation to CCIE lab exam. I hope someone can use it successfully http://www.internetworkexpert.com/